Malicious PDF — malware analysis report

Static analysis result for SHA-256 457b615f1439d041…

MALICIOUS

PDF

241.6 KB Created: 2020-08-11 19:05:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 113c77beebab81582938957120c51552 SHA-1: 09794b2aeee70746a0f6461c8ec9c5e76cd196e0 SHA-256: 457b615f1439d041f30bf5e8df8e1426ba00f84ce001c765eeebc6aa6a7c022e
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.com/pify?keyword=lei+do+simples+nacional+2020+pdf', is directly associated with this malicious activity. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=lei+do+simples+nacional+2020+pdf In PDF document text
    • http://nudowokox.arcadianvacationrentals.com/uploads/1/3/0/9/130969352/kakim.pdfIn PDF document text
    • http://files.thebiologistapprentice.com/uploads/1/3/1/1/131164572/84121.pdfIn PDF document text
    • http://kinojem.archildrensbookpublishing.com/uploads/1/3/1/0/131069839/2978579.pdfIn PDF document text
    • http://wisana.tradervidz.com/uploads/1/3/1/8/131856725/bipekeboze-riwapu-tipotedimev.pdfIn PDF document text
    • http://files.1drop2creativeart.com/uploads/1/3/1/8/131856331/newiwifileriv-pamuderavobamur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1184/9890/files/d_d_4e_player_s_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/lovolenirefid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/89524384571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7897/0533/files/dessert_business_plan_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7539/4977/files/17992732351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/zefifagajufive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/kisiwulub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/nubenibotuluruzadevom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/mamas_family_full_episode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/gotinomavewatada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8133/0841/files/postman_api_documentation.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00035931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35931 5420 bytes
SHA-256: c785d0e3882ff1c0f0f0a367e485a611c8f869e23cd232504849cbe1531ea1d5
font_01_sfnt_off00036b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36B93 18772 bytes
SHA-256: 63a0f32c9227119d0c638e8dc712651abc548db0393912c834ef1f005c9a65dd
font_02_sfnt_off0003a1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A1C2 16204 bytes
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449

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